FAMILY V.
Aplysiacea. Two genera.
1. Aplysia. Three species.
This genus may almost be said to have no testaceous covering, as it appears more like the element of a shell.
Aplysia depilans.
A. fasciata.
A. punctata.
A. depilans. The bald Aplysia.
Shell dorsal, semicircular, of a thin yellow cartilaginous substance.
2. Dolabella. Two species.
Closely allied to the Aplysia; it is a singularly formed shell, difficult to describe, as it contains few of the characteristics which distinguish other shells.